Minor adjustments

Author: nx10

src/brain.rs

@@ -170,7 +170,7 @@ impl tui::widgets::Widget for SliceWidget<'_> {
                 let val_upper = img_sized.get_pixel(x, y+1)[0] as usize;
                 let val_lower = img_sized.get_pixel(x, y)[0] as usize;
 
-                let gradient = colorous::VIRIDIS;
+                let gradient = colorous::INFERNO;
                 let col_upper = gradient.eval_rational(val_upper, u16::MAX as usize + 1);
                 let col_lower = gradient.eval_rational(val_lower, u16::MAX as usize + 1);
 

src/main.rs

@@ -7,11 +7,11 @@ use std::io;
 use tui::backend::CrosstermBackend;
 use tui::Terminal;
 
-/// Simple program to greet a person
+/// headjack - Terminal UI 3D volume brain imaging viewer
 #[derive(Parser, Debug)]
 #[command(author, version, about, long_about = None)]
 struct Args {
-    /// Name of the person to greet
+    /// Image file name (.nii or .nii.gz)
     #[arg(index = 1)]
     input: String,
 }